Home / 7,838,424,019.60-11,757,636,029.40-7,239,808,877.20

Finding the Fourth Proportional to 7,838,424,019.60, 11,757,636,029.40 and 7,239,808,877.20

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Solution

The fourth proportional to 7,838,424,019.60, 11,757,636,029.40 and 7,239,808,877.20 is: 10,859,713,315.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,838,424,019.60 : 11,757,636,029.40 = 7,239,808,877.20 : x
  2. Step 2: Convert to fraction form
    7,838,424,019.60/11,757,636,029.40 = 7,239,808,877.20/x
  3. Step 3: Cross multiply
    7,838,424,019.60x = 11,757,636,029.40 × 7,239,808,877.20
  4. Step 4: Simplify right side
    7,838,424,019.60x = 85,123,037,700,536,680,448
  5. Step 5: Solve for x
    x = 85,123,037,700,536,680,448/7,838,424,019.60
  6. Step 6: Final answer
    x = 10,859,713,315.80

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.